2005/01/31 by Kipom Kim, Jong Kyun Moon, Jong Jin Park +2
Physics and Astronomy · #cond-mat.stat-mech #cond-mat.soft
paper · pdf · doi:10.1103/physreve.72.011302
published as Phys. Rev. E 72, 011302 (2005) · 5 pages, 5 figures, accepted by Phys. Rev. E
arxiv created 2005/06/25 · arxiv updated 2009/12/01
The dynamics of the jamming transition in a three-dimensional granular system under vertical vibration is studied using diffusing-wave spectroscopy. When the maximum acceleration of the external vibration is large, the granular system behaves like a fluid, with the dynamic correlation function G(t) relaxing rapidly. As the acceleration of vibration approaches the gravitational acceleration g, the relaxation of G(t) slows down dramatically, and eventually stops. Thus the system undergoes a phase transition and behaves like a solid. Near the transition point, we find that the structural relaxation shows a stretched exponential behavior. This behavior is analogous to the behavior of supercooled liquids close to the glass transition.